Those who received oxytocin were affected by giving less severe punishments, but they also gave more punishments. Oxytocin appears to increase corrective punishments but make them more fair, and the difference is measurable in the brain.

I'm not surprised that Oxytocin would make punishments more fair. I believe that important decisions should be made when our minds are in a 'positive/calm' state. It would make sense to meditate as well. I believe in fair punishments that re-educate when possible, eliminating the ground for future crimes.

Is punishing a wrongdoer more rewarding than helping a victim?

It is perhaps more rewarding as it empowers us to feel we are also helping free society of evil.

Helping the victims is not easy for everyone, as we fear facing sadness, anger, and all our array of emotions.